1. Right A stationary object lies along the
line connecting two spheres. The
object is exactly in between the
two spheres (the distances from
the centers of each sphere to the
object are identical).
2. Left
3. Does not mov
4. Down
The left sphere is a hollow
spherical shell of mass M and the
right sphere is a solid sphere of
mass M. Which direction will the
object move?? Note the object is
outside of both the spheres.
5. Up

answer;

d. are made mostly of liquid

explanation;

-the general   composition and structure planets includes; they have a thick gas and liquid layer covering a small,solid core. mostly the gases are hydrogen and helium atmosphere and layers of liquid hydrogen. for instance neptune and uranus are examples of the outer planets, they have a core covered by ice and ammonia.

-neptune's atmosphere is hydrogen and helium with a bit of methane so there is no oxygen to breath and the interior is made up of frozen water and ammonia with a rock and iron core. thus, there is no liquid water or solid surface to survive.